package com.leetcode;

import java.util.HashMap;
import java.util.HashSet;

import java.util.*;

public class Main {
    public static void main(String[] args) {
        String s = "123";
        int a = Integer.parseInt(s);
        System.out.println(a);
        String s1 = Integer.valueOf(a).toString();
        System.out.println(s1);
    }
}
